TY - JOUR T1 - Theorems in Analytical Geometry JF - Proceedings of the Royal Society of London (1854-1905) VL - 44 SP - 388 EP - 392 PY - 1888/01/01/ UR - http://dx.doi.org/10.1098/rspl.1888.0057 M3 - doi:10.1098/rspl.1888.0057 AU - Russell, W. ER -